Motor-boat attachment.



v J. E. ERIKSON.

MOTOR BoAT ATTACHMENT.

APPLICATION :FILED MAY 16, 1911. 4 y i b 1,002,661, t Patented Sept. 5, 1911.

3 SHEETS*SHBET1.

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Wilma/.wee

J. E. ERIKSON.

MOTOR BOAT ATTACHMENT.

1111110111011 FILED MAY 1e, 1911.

1,002,661 Patented Sept. 5, 1911.

3 SHEETS-SHEET 2.

llllllllllllllll @s N Ri @Vi/Immo Y J. E. ERIKSON.

MOTOR BOAT ATTACHMENT. APPLICATION FILED MAY 16, 1911.

Patented Sept. 5, 1911.

3 SHEETS-SHEET 3.

UNITED ystrnrns lPATENT orrion- JOHN E. ERIKS-QN, OF PEQUOT, MINNESOTA.

Moron-Boar ATTAGHMENT.

Specification of Letters Patent.

Application med May 16, 1911. SeriaLNa 627,428.

. w vehicles, and particularly to an attachment .for motor boats to adapt the same for land travel, the object of the invention being to provide means which may be' applied to any ordinary type of motor boat whereby the 15 same ma be converted at any time into a land vehicle.

lThe invention consists of the features of construction, combination and arrangement of parts hereinafter described and claimedr:

2@ reference being had to the accompanying drawings, in which Figure 1 is a side elevation of a 4motor boat embodying my invention, showing the landwheels lowered for use. Fig. 2 is a top mi plan viewy of the same. Fig. 3 is a view similar to Fig. 1, showing the land wheels elevated to an inoperative position. Fig. 4

is a vertical transverse section on line 4-4- of Fig. 1. Fig. 5 is asimilar section on line m 5-5`0f Fig. 1. Fig. 6 is a detail section on ,line 6--6 of Fig. 2. Fig. 7 visa perspective view of one ofthe supporting brackets.

Fig. 8 is a sectional end elevation of one of the front wheels and its carrier.

w a similar view of one of the rear wheels and its carrier.

Referring to the drawings, the numeral 1 designates the body or hull, 2 the motor, 3 the propeller shaft, andli the propeller of a motor boat of any suitable type. 1

Secured to the sides of the hull 1, adjacent to the bow and stern thereof, respectively, are brackets 5 and 6, which are' generally similar in construction, each comprising a plate boltedor otherwise fastened `in position and provided u `on the front thereof with a guideway 7. ach bracket `is further provided with avertical guide groove 8 ter minating at its upper end in a horizontal portion 9, and with a retainer 10 composed of space plates arranged adjacent to said horizontal ortion of the guide groove.

Journale -in the bracket plates and extending-across the to of the hull are front ing -at their ends pinions 13 which project Fig. 9 is and rear transverse s afts 11 and 12 :carry-l 'partially into the guideways 7,-as shown. These shafts carry bevel gears 14 meshing Patented Sept.l 5, '1911.

with bevel gears 15 on a longitudinal trans-V missin shaft 16, whereby said shafts lare adapted to rotate in unison to transmit mo.

tion to all the gear pinions simultaneously. Slldably supported by the respective brackets are carriers 17 and18, each comprising an oblong rectangular plate'v provided along its front. edge and lower rearwardly curved edge with a series of gear teeth 19, the gear 4teeth of the respective carriers meshing with the pinions 13 on the ytransverse shafts 11 and 12. Each carrier is provided 'witha T-shaped guide pin or bolt 20-at or 'near its lower end, which guide pin' or :bolt travels in the cdactingguide groove 8, whereby the' carrier is adapted on its up and down movements to follow the course of said groove.

From the foregoing construction, it will be apparent that the carriers arefadapted to be adjusted verticall upon the brackets' orsupports throught e rack and pinion mechanism, and through the lateral curvature'- of the .upper ends of the grooves and .the action of the pinidns on the curved lower ends of the carriers are adapted at the limit of their upward movement to swing rearf wardly into engagement with the re.- tainers 10.

The front carrier plates are formed with bearing sleeves 21 in which are journaled spindles or stems `22khaving forked lower ends 23 in which are journaled front supporting and' steering wheels 24, .which are preferabl provided with pneumatic'tires. The upp r ends of said spindles.- or "stems are angularly bent to form cranks 25 which pivotally engageA the ,opposite ends of a transversely disposed steering bar/26. yThis bar'is provided at its rear edge with rack teeth 27 engaged by a pinion 28 on a shaft 29 carrying al steerin wheel 30, the construction being such t at upon .turningY the steering wheelin one'direction or theother, the steering bar will vbe laterally shifted in one direction or the other to transmit lmotion to the Icranks 25, whereby the supporting and steering wheels 24:- may be turned to the right -orleft-.to steer the vehicle. Slots 31 are formed in the barand receive pins or studs 32 on the body of the boat, whereby the bar is supported and guided in a straight path and its motion in either direction limited.

, Each `rear carrier Aplate supports an laxle v pinV or bolt 33 liked at one end therein and curved brace 34 secured at its upper end to at 'its opposite end in the lower-'end of a said -plate. Journaled on said axle is a rear supportin and drive wheel 35 pref,-

erably provide with a pneumatic tire and arranged between' the plate and brace. The hubof said wheel has secured thereto a sprocket'wheel v36 connected by a chain 37 with al sprocket vdrive wheel or pinion 38 on the yadjacent end of a vtransverse shaft 39. The shaft 39 extends across lthefhull of'the'boat 4and is journaled in the upper ends of the brackets or supports 5 and 6 .and isadapted vto receive driving energy Wheels 35 for propelling the vehicle on land. l Mounted-on thev shafts 12 'and 39, which are arrangedjin parallel relation and in proximity to each other, are gears 40 and 41 adapted to be engaged by a pinion or' gear 42 on the upper end of' a vertical transmission-shaft43. This shaft 43 is carriedrby'a sliding bracket 44,? inwhich it is journaled,

which bracket .is adjustable between the' two gears and 41 by meansef a lever 44 provided with a pawl45 adapted to engage the rack 46 to secure said bracket in adjusted p osition.- The lower end ofthe shaft 43 .is in gear with -thepropeller shaft through the 'medium ofa gear 47 feathered to slide upon and rotate with saidfpropeller shaft and' engaged by theforked lower end 48 of the i' bracket 44, wherebyitis adapted to be shifted with said bracket. By this construction power mayfbe transmitted from the propeller shaft to drive either shaft 12 or 39, either vone of which shafts maybe driven in a for- 'Ward4 direction lwhen ythe propeller drive gearing is in normal position or in a rearward direction by reversing the drive gearing or the motor. 'When the gear 42 1s in i mesh with the gear 40 the shaft v12 will be I operated, according to the direction of motion imparted thereto, to transmitv motion' to the rack and pinion mechanismto either 'adjust or move yall ofthe carriers or wheels downwardly or to adjust or`move all of said carriers and wheels upwardly, .whereby the wheels may be, rejected for use or retracted i t a substantia ly horizontal position when their use for land propulsion is not desired.

In the latter named positionjt will be apparent that the lwheels andcarriers will be out of theway of the oecupantsof the boat and will notv interfere with the' propulsion of the' boat through the water.. When the gear 42 is shifted intoengagement withv the gear '41 motion will be transmitted through the shaft 39 and sprocketl gearing to drive the rear supporting wheels for the propulsion of the vehicleonland, as willbereadily understood; Paw-l and ratchetw mecha- 'nism 49, or locking means of any equivalent character, may be provided for holding the .quires. from the motor to transmit motion to the and 'shaft 12 against'retro rade rotation in any of its positions of adjustment, so that the carriers and supporting wheels will be held securely in the positions they occupy.

From the foregoing description, taken in `connection with the drawings, the construction and mode of use of myattachment for motor boats will lbe readily understood, and itv will be seen that the invention provides a traction attachment which is applicable to any ordinary typeof motor boat for converting the same into a land vehicle, which attachment may be readily and conveniently thrown into and out of use as occasion re- Having thus described I claim is: j

.1., A' vehicle of the character described the invention, what embodying a hull, a motor, front and rear sets of sup orting wheels mounted upon the hull for adjustment from an operative to an inoperative position, and vice versa, gearing rack and pinion devices for raising and lowering the sets of wheels simultaneously gearing for driving one of said sets of wheels', and means for driving either of said setsof gearing from the motor.

2. Al vehicle of the character described embodying a hull, front andrear sets of supporting wheels, rack-toothed brackets carrying said wheels and mounted upon the hull for vertical adju-stment from an operative -to an inoperative position, and vice versa, shafts' carrying pinions meshing with the rack-toothed brackets, steerin mechanism lconnected-with the frontwhee s,- means raising and lowermg the sets of wheels s1- carriers, -rear supporting wheels journaled upon the rear carriers, steering-mechanism connected with the frbnt supporting wheels, meansfor raising and lowermg the sets of supporting 4wheels simultaneously, drive gearingupon they hull of the vehicle, and means for drivin .the rear supporting wheels from said'drive gearing.

4. A vehicle of the character described comprising .a hull, supporting brackets at the sides of the hullvadjacent the ,bow and stern thereof, carriers adjustably mounted upon the. brackets for downward movement -to a substantially vertical position and p- Ward movement to asubstantially horizontal position, forks journaled on the front caradjustably -for actuating thepinion-carrying shafts for A i Amultaneously, and means for driving the provided with cranks,-

vcomprising a riers and carrying supporting wheels and rear supporting wheels journaled upon the rear carrier, a steering bar engaging said cranks,1neans for operating said steering bar, means for' raising and lowering the sets of supporting wheels simultaneously, and gearing operated by the drive gearing for driving the rear supporting wheels 5. A vehicle of the character described huil, carriers adjustably mounted at the sides ot' the hulll adjacent the bow and stern thereof, means including rack and pinion gearing for adjusting said carriers up or down simultaneously, supporting and steering wheels mounted upon the front carriers, means lfor turning said steering wheels, supporting and driving wheels mounted upon the rear carriers, drive gearing supported by the hull, and gearing operatedthereby Jfor driving said rear Wheels. i

6.. A vehicle of the character described embodying a. hull, front and rear sets ot'v vertically adjustable wheels, steering mechanism connected vwith the front wheels, a motor,l gearing for raising and lowering the wheels, gearing for driving said Wheels; and means for throwing eitherl of said sets of gearing into and outJ of connection with the motor.

In testimony whereof l aiix my signature in presence of two witnesses.

'JOHN E. ERIKSON.

Witnesses:

A. R. HOLMAN, C. W. WooDwoR'rH. 

